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Systematic search for single nucleotide polymorphisms in a lymphoid tyrosine phosphatase gene (PTPN22): association between a promoter polymorphism and type 1 diabetes in Asian populations.

Systematic search for single nucleotide polymorphisms in a lymphoid tyrosine phosphatase gene (PTPN22): association between a promoter polymorphism and type 1 diabetes in Asian populations. Research Abstract Details 

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  • Systematic search for single nucleotide polymorphisms in a lymphoid tyrosine phosphatase gene (PTPN22): association between a promoter polymorphism and type 1 diabetes in Asian populations. Abstract Text:

    eiji kawasakiEiji Kawasaki,takuya awataTakuya Awata,hiroshi ikegamiHiroshi Ikegami,tetsuro kobayashiTetsuro Kobayashi,taro maruyamaTaro Maruyama,koji nakanishiKoji Nakanishi,akira shimadaAkira Shimada,miho ugaMiho Uga,mho ugaMho Uga,susumu kuriharaSusumu Kurihara,yumiko kawabataYumiko Kawabata,shoichiro tanakaShoichiro Tanaka,yasuhiko kanazawaYasuhiko Kanazawa,inkyu leeInkyu Lee,katsumi eguchiKatsumi Eguchi,

    The protein tyrosine phosphatase, nonreceptor 22 gene (PTPN22) maps to human chromosome 1p13.3-p13.1 and encodes an important negative regulator of T-cell activation, lymphoid-specific phosphatase (Lyp). Recently, the minor allele of a single-nucleotide polymorphism (SNP) at nucleotide position 1858 (rs2476601, +1858C > T) was found to be associated with type 1 diabetes. However, the degree of the association is variable among ethnic populations, suggesting the presence of other disease-associated variants in PTPN22. To examine this possibility, we carried out a systemic search for PTPN22 using direct sequencing of PCR-amplified products in the Japanese population. Association and linkage studies were also conducted in 1,690 Japanese samples, 180 Korean samples, and 472 Caucasian samples from 95 nuclear families. We identified five novel SNPs, but not the +1858C > T SNP. Of these two frequent SNPs, -1123G > C, and +2740C > T were in strong linkage disequilibrium (LD), and the -1123G > C promoter SNP was associated with acute-onset but not slow-onset type 1 diabetes in the Japanese population (odds ratio [OR] = 1.42, 95% CI = 1.07-1.89, P = 0.015). This association was observed also in Korean patients with type 1 diabetes (Mantel-Haenszel chi2= 6.543, P = 0.0105, combined OR = 1.41 95% CI = 1.09-1.82). Furthermore, the affected family-based control (AFBAC) association test and the transmission disequilibrium analysis of multiplex families of European descent from the British Diabetes Association (BDA) Warren Repository indicated that the association was stronger in -1123G > C compared to +1858C > T. In conclusion, the type 1 diabetes association with PTPN22 is confirmed, but it cannot be attributed solely to the +1858C > T variant. The promoter -1123G > C SNP is a more likely causative variant in PTPN22.

    Systematic search for single nucleotide polymorphisms in a lymphoid tyrosine phosphatase gene (PTPN22): association between a promoter polymorphism and type 1 diabetes in Asian populations. Publishing Authors By Initials

    e kawasakiE Kawasaki,t awataT Awata,h ikegamiH Ikegami,t kobayashiT Kobayashi,t maruyamaT Maruyama,k nakanishiK Nakanishi,a shimadaA Shimada,m ugaM Uga,m ugaM Uga,s kuriharaS Kurihara,y kawabataY Kawabata,s tanakaS Tanaka,y kanazawaY Kanazawa,i leeI Lee,k eguchiK Eguchi,

    For similar enzymes and coenzymes: enzymes: hydrolases: esterases: phosphoric monoester hydrolases: protein tyrosine phosphatases research abstracts see: enzymes and coenzymes: enzymes: hydrolases: esterases: phosphoric monoester hydrolases: protein tyrosine phosphatases research

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    Systematic search for single nucleotide polymorphisms in a lymphoid tyrosine phosphatase gene (PTPN22): association between a promoter polymorphism and type 1 diabetes in Asian populations. Journal Published:

    PUBLICATION TYPE: Research Support, Non-U.S. Gov

    Journal: American journal of medical genetics. Part A

    VOLUME: 140

    Page Numbers: 586-93

    Journal Abbreviation: Am. J. Med. Genet. A

    ISSN: 1552-4825

    DAY: 15

    MONTH: Mar

    YEAR: 2006

    Systematic search for single nucleotide polymorphisms in a lymphoid tyrosine phosphatase gene (PTPN22): association between a promoter polymorphism and type 1 diabetes in Asian populations. Information

    Number of References:

    LANGUAGE: eng

    NlmUniqueID: 101235741

    Systematic search for single nucleotide polymorphisms in a lymphoid tyrosine phosphatase gene (PTPN22): association between a promoter polymorphism and type 1 diabetes in Asian populations. Keywords Mesh Terms:

    KEYWORDS: Protein Tyrosine Phosphatases

    MESH TERMS: genetics

    Chemical & Substance for Abstract: Systematic search for single nucleotide polymorphisms in a lymphoid tyrosine phosphatase gene (PTPN22): association between a promoter polymorphism and type 1 diabetes in Asian populations. Information

    Substance Name: Protein Tyrosine Phosphatases

    Registry Number: EC 3.1.3.48

    Grant and Affiliation Information for Systematic search for single nucleotide polymorphisms in a lymphoid tyrosine phosphatase gene (PTPN22): association between a promoter polymorphism and type 1 diabetes in Asian populations.

    AFFILIATION: Department of Metabolism/Diabetes and Clinical Nutrition, Nagasaki University Hospital of Medicine and Dentistry, Nagasaki, Japan.

    Country: United States

    United States Research PublicationUnited States Research Publication

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    MEDLINETA: Am J Med Genet A

    REFSOURCE: Am J Med Genet A. 2007 Aug 1;143(15):182

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    Systematic search for single nucleotide polymorphisms in a lymphoid tyrosine phosphatase gene PTPN22: association between a promoter polymorphism and type 1 diabetes in Asian populations Related Publications

     

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